5.388A In Regions 1 and 3, the bands 1885-1980 MHz, 2010-2025 MHz and 2110-2170 MHz and, in Region 2, the bands 1885-1980 MHz and 2110-2160 MHz may be used by high altitude platform stations as base stations to provide International Mobile Telecommunications-2000 (IMT-2000), in accordance with Resolution 221 (Rev.WRC-07). Their use by IMT-2000 applications using high altitude platform stations as base stations does not preclude the use of these bands by any station in the services to which they are allocated and does not establish priority in the Radio Regulations. (FCC)

5.388B In Algeria, Saudi Arabia, Bahrain, Benin, Burkina Faso, Cameroon, Comoros, Côte d’Ivoire, China, Cuba, Djibouti, Egypt, United Arab Emirates, Eritrea, Ethiopia, Gabon, Ghana, India, Iran (Islamic Republic of), Israel, the Libyan Arab Jamahiriya, Jordan, Kenya, Kuwait, Mali, Morocco, Mauritania, Nigeria, Oman, Uganda, Qatar, the Syrian Arab Republic, Senegal, Singapore, Sudan, Tanzania, Chad, Togo, Tunisia, Yemen, Zambia and Zimbabwe, for the purpose of protecting fixed and mobile services, including IMT-2000 mobile stations, in their territories from co-channel interference, a high altitude platform station (HAPS) operating as an IMT-2000 base station in neighbouring countries, in the bands referred to in No. 5.388A, shall not exceed a co-channel power flux-density of −127 dB(W/(m² · MHz)) at the Earth’s surface outside a country’s borders unless explicit agreement of the affected administration is provided at the time of the notification of HAPS.

5.392 Administrations are urged to take all practicable measures to ensure that space-to-space transmissions between two or more non-geostationary satellites, in the space research, space operations and Earth exploration-satellite services in the bands 2025-2110 MHz and 2200-2290 MHz, shall not impose any constraints on Earth-to-space, space-to-Earth and other space-to-space transmissions of those services and in those bands between geostationary and non-geostationary satellites.

US90 In the band 2025-2110 MHz, the power flux-density at the Earth's surface produced by emissions from a space station in the space operation, Earth exploration-satellite, or space research service that is transmitting in the space-to-space direction, for all conditions and all methods of modulation, shall not exceed the following values in any 4 kHz sub-band:

(a) -154 dBW/m² for angles of arrival above the horizontal plane (δ) of 0° to 5°,
(b) -154 + 0.5(δ-5) dBW/m² for δ of 5° to 25°, and
(c) -144 dBW/m² for δ of 25° to 90°.

Could not find US92

US222 In the band 2025-2035 MHz, geostationary operational environmental satellite (GOES) earth stations in the space research and Earth exploration-satellite services may be authorized on a coequal basis for Earth-to-space transmissions for tracking, telemetry, and telecommand at Honolulu, HI (21° 21' 12" N, 157° 52' 36" W); Seattle, WA (47° 34' 15" N, 122° 33' 10" W); and Wallops Island, VA (37° 56' 44" N, 75° 27' 42" W).

US346 Except as provided for below and by US222, Federal use of the band 2025-2110 MHz by the space operation service (Earth-to-space), Earth exploration-satellite service (Earth-to-space), and space research service (Earth-to-space) shall not constrain the deployment of the Television Broadcast Auxiliary Service, the Cable Television Relay Service, or the Local Television Transmission Service. To facilitate compatible operations between non-Federal terrestrial receiving stations at fixed sites and Federal earth station transmitters, coordination is required. To facilitate compatible operations between non-Federal terrestrial transmitting stations and Federal spacecraft receivers, the terrestrial transmitters in the band 2025-2110 MHz shall not be high-density systems (see Recommendations ITU-R SA.1154 and ITU-R F.1247). Military satellite control stations at the following sites shall operate on a co-equal, primary basis with non-Federal operations:

Facility	Coordinates
Naval Satellite Control Network, Prospect Harbor, ME	44° 24' 16" N 068° 00' 46" W
New Hampshire Tracking Station, New Boston AFS, NH	42° 56' 52" N 071° 37' 36" W
Eastern Vehicle Check-out Facility & GPS Ground Antenna & Monitoring Station, Cape Canaveral, FL	28° 29' 09" N 080° 34' 33" W
Buckley AFB, CO	39° 42' 55" N 104° 46' 36" W
Colorado Tracking Station, Schriever AFB, CO	38° 48' 21" N 104° 31' 43" W
Kirtland AFB, NM	34° 59' 46" N 106° 30' 28" W
Camp Parks Communications Annex, Pleasanton, CA	37° 43' 51" N 121° 52' 50" W
Naval Satellite Control Network, Laguna Peak, CA	34° 06' 31" N 119° 03' 53" W
Vandenberg Tracking Station, Vandenberg AFB, CA	34° 49' 21" N 120° 30' 07" W
Hawaii Tracking Station, Kaena Pt, Oahu, HI	21° 33' 44" N 158° 14' 31" W
Guam Tracking Stations, Anderson AFB, and Naval CTS, Guam	13° 36' 54" N 144° 51' 18" E

US347 In the band 2025-2110 MHz, non-Federal Earth-to-space and space-to-space transmissions may be authorized in the space research and Earth exploration-satellite services subject to such conditions as may be applied on a case-by-case basis. Such transmissions shall not cause harmful interference to Federal and non-Federal stations operating in accordance with the Table of Frequency Allocations.

SpectrumWiki

Advanced Wireless Services (AWS-1) Band

The band 1710-1755 MHz (mobile transmit) is paired with 2110-2155 MHz (base transmit) to create the first band dedicated specifically for what the FCC calls Advanced Wireless Services (AWS). According to the Commission, AWS refers to 3G systems and beyond (also referred to as International Mobile Telecommunications 2000, or IMT-2000, by the ITU).

The 1710-1755 MHz band was created out of spectrum that was previously reserved for the federal government only. In 1995, it was identified as feasible for shared government/non-government use. In accordance with footnote US378, some government operations, in particular fixed and tactical radio systems near Cherry Point, NC, and Yuma, AZ, will continue to operate in this band on a primary basis.

The band 2110-2155 MHz was created from spectrum that had previously been used for fixed microwave links (2110-2150 MHz) and for the Multipoint Distribution Service (MDS) (2150-2155 MHz). The FCC declared these bands for use by AWS in 2002.

As of mid-2012, some operators in the U.S., such as T-Mobile, are using AWS-1 spectrum to provide 4G service (HSPA+ in the case of T-Mobile).

Paired Frequency Bands
Paired Bands	Use	Service	Table
1710 - 1755 MHz	AWS-1 (mobile transmit)	Mobile	N
2110 - 2155 MHz	AWS-1 (base transmit)	Mobile	N

External Links:

FCC Order declaring 1710-1755/2110-2155 MHz for AWS (FCC 02-304)

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European Union 3G & 4G (LTE) Band

In November, 2012, the European Commission adopted new rules clearing the way for the frequency band 1920-1980 MHz, paired with 2110-2170 MHz, to be used for 4G (LTE) services, in addition to its existing designated use for 3G services.

Paired Frequency Bands
Paired Bands	Use	Service	Table
1920 - 1980 MHz	European Union 3G & 4G band	Mobile	-
2110 - 2170 MHz	European Union 3G & 4G band	Mobile	-

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NASA Deep Space Network (DSN)

According to NASA:

"The NASA Deep Space Network - or DSN - is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions.

"The DSN currently consists of three deep-space communications facilities placed approximately 120 degrees apart around the world: at Goldstone, in California's Mojave Desert; near Madrid, Spain; and near Canberra, Australia. This strategic placement permits constant observation of spacecraft as the Earth rotates, and helps to make the DSN the largest and most sensitive scientific telecommunications system in the world."

Frequency Bands
Band	Use	Service	Table
25.5 - 27 GHz	DSN K-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research	F

Paired Frequency Bands
Paired Bands	Use	Service	Table
2025 - 2110 MHz	DSN S-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
2200 - 2290 MHz	DSN S-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
2110 - 2120 MHz	DSN S-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
2290 - 2300 MHz	DSN S-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7145 - 7190 MHz	DSN X-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F
8400 - 8450 MHz	DSN X-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
7190 - 7235 MHz	DSN X-Band Uplink (to spacecraft less than 2 million km from Earth)	Space Research	F
8450 - 8500 MHz	DSN X-Band Downlink (from spacecraft less than 2 million km from Earth)	Space Research (space-to-Earth)	F
31.8 - 32.3 GHz	DSN Ka-Band Downlink (from spacecraft more than 2 million km from Earth)	Space Research (deep space)	F
34.2 - 34.7 GHz	DSN Ka-Band Uplink (to spacecraft more than 2 million km from Earth)	Space Research	F

External Links:

NASA Deep Space Network

NASA DSN Frequency and Channel Assignments (DSN 810-005 part 201)

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Standard LTE Bands

The following bands have been defined by 3GPP as standard LTE bands for Frequency Division Duplex (FDD, where mobile and base stations transmit in separate bands) and Time Division Duplex (TDD, where mobiles and bases transmit and receive on the same frequency). These bands are defined in 3GPP TS 36.101 (link below).

Note that bands 15 & 16 and 30-32 are not defined, and the FDD band 29 is used for downlink-only for carrier aggregation, so it has no corresponding uplink band.

Uplinks refer to the frequencies used for handsets and other user devices to transmit to the base station, and downlinks refer to frequencies used by base stations to transmit to the user devices.

Paired Frequency Bands
Paired Bands	Use	Service	Table
452.5 - 457.5 MHz	LTE band 31 FDD uplink	Mobile	-
462.5 - 467.5 MHz	LTE band 31 FDD downlink	Mobile	-
699 - 716 MHz	LTE band 12 FDD uplink	Mobile	-
729 - 746 MHz	LTE band 12 FDD downlink	Mobile	-
703 - 748 MHz	LTE band 28 FDD uplink	Mobile	-
758 - 803 MHz	LTE band 28 FDD downlink	Mobile	-
704 - 716 MHz	LTE band 17 FDD uplink	Mobile	-
734 - 746 MHz	LTE band 17 FDD downlink	Mobile	-
746 - 756 MHz	LTE band 13 FDD downink	Mobile	-
777 - 787 MHz	LTE band 13 FDD uplink	Mobile	-
758 - 768 MHz	LTE band 14 FDD downlink	Mobile	-
788 - 798 MHz	LTE band 14 FDD uplink	Mobile	-
807 - 824 MHz	LTE band 27 FDD uplink	Mobile	-
852 - 869 MHz	LTE band 27 FDD downlink	Mobile	-
814 - 849 MHz	LTE band 26 FDD uplink	Mobile	-
859 - 894 MHz	LTE band 26 FDD downlink	Mobile	-
815 - 830 MHz	LTE band 18 FDD uplink	Mobile	-
860 - 875 MHz	LTE band 18 FDD downlink	Mobile	-
824 - 849 MHz	LTE band 5 FDD uplink	Mobile	-
869 - 894 MHz	LTE band 5 FDD downlink	Mobile	-
830 - 840 MHz	LTE band 6 FDD uplink ("band 6 is not applicable" according to the standard)	Mobile	-
875 - 885 MHz	LTE band 6 FDD downlink ("band 6 is not applicable" according to the standard)	Mobile	-
830 - 845 MHz	LTE band 19 FDD uplink	Mobile	-
875 - 890 MHz	LTE band 19 FDD downlink	Mobile	-
791 - 821 MHz	LTE band 20 FDD downlink	Mobile	-
832 - 862 MHz	LTE band 20 FDD uplink	Mobile	-
880 - 915 MHz	LTE band 8 FDD uplink	Mobile	-
925 - 960 MHz	LTE band 8 FDD downlink	Mobile	-
1427.9 - 1447.9 MHz	LTE band 11 FDD uplink	Mobile	-
1475.9 - 1495.9 MHz	LTE band 11 FDD downlink	Mobile	-
1447.9 - 1462.9 MHz	LTE band 21 FDD uplink	Mobile	-
1495.9 - 1510.9 MHz	LTE band 21 FDD downlink	Mobile	-
1525 - 1559 MHz	LTE band 24 FDD downlink	Mobile	-
1626.5 - 1660.5 MHz	LTE band 24 FDD uplink	Mobile	-
1710 - 1755 MHz	LTE band 4 FDD uplink	Mobile	-
2110 - 2155 MHz	LTE band 4 FDD downlink	Mobile	-
1710 - 1785 MHz	LTE band 3 FDD uplink	Mobile	-
1805 - 1880 MHz	LTE band 3 FDD downlink	Mobile	-
1710 - 1770 MHz	LTE band 10 FDD uplink	Mobile	-
2110 - 2170 MHz	LTE band 10 FDD downlink	Mobile	-
1749.9 - 1784.9 MHz	LTE band 9 FDD uplink	Mobile	-
1844.9 - 1879.9 MHz	LTE band 9 FDD downlink	-	-
1850 - 1910 MHz	LTE band 2 FDD uplink	Mobile	-
1930 - 1990 MHz	LTE band 2 FDD downlink	Mobile	-
1850 - 1915 MHz	LTE band 25 FDD uplink	Mobile	-
1930 - 1995 MHz	LTE band 25 FDD downlink	Mobile	-
1920 - 1980 MHz	LTE band 1 FDD uplink	Mobile	-
2110 - 2170 MHz	LTE band 1 FDD downlink	Mobile	-
2000 - 2020 MHz	LTE band 23 FDD uplink	Mobile	-
2180 - 2200 MHz	LTE band 23 FDD downlink	Mobile	-
2305 - 2315 MHz	LTE band 30 FDD uplink	Mobile	-
2350 - 2360 MHz	LTE band 30 FDD downlink	Mobile	-
2500 - 2570 MHz	LTE band 7 FDD uplink	Mobile	-
2620 - 2690 MHz	LTE band 7 FDD downlink	Mobile	-
3410 - 3490 MHz	LTE band 22 FDD uplink	Mobile	-
3510 - 3590 MHz	LTE band 22 FDD downlink	Mobile	-

Frequency Bands
Band	Use	Service	Table
703 - 803 MHz	LTE band 44 TDD	Mobile	-
717 - 728 MHz	LTE band 29 FDD unpaired downlink (carrier aggregation use only)	Mobile	-
1850 - 1910 MHz	LTE band 35 TDD	Mobile	-
1880 - 1920 MHz	LTE band 39 TDD	Mobile	-
1900 - 1920 MHz	LTE band 33 TDD	Mobile	-
1910 - 1930 MHz	LTE band 37 TDD	Mobile	-
1930 - 1990 MHz	LTE band 36 TDD	Mobile	-
2010 - 2025 MHz	LTE band 34 TDD	Mobile	-
2300 - 2400 MHz	LTE band 40 TDD	Mobile	-
2496 - 2690 MHz	LTE band 41 TDD	Mobile	-
2570 - 2620 MHz	LTE band 38 TDD	Mobile	-
3400 - 3600 MHz	LTE band 42 TDD	Mobile	-
3600 - 3800 MHz	LTE band 43 TDD	Mobile	-

External Links:

3GPP TS 36.101 specification

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NASA Tracking and Data Relay Satellite System (TDRSS)

According to NASA:

The Tracking and Data Relay Satellites (TDRS) comprise the communication satellite component of the Tracking and Data Relay Satellite System (TDRSS). TDRSS is a communication signal relay system which provides tracking and data aquisition services between low-earth orbiting spacecraft and control and/or data processing facilities. The system is capable of transmitting to and receiving data from spacecraft over at least 85% of the spacecraft's orbit.

The TDRSS space segment consists of six on-orbit Tracking and Data Relay Satellites located in geosynchronous orbit. Three TDRSs are available for operational support at any given time. The operational spacecraft are located at 41°, 174° and 275° West longitude. The other TDRSs in the constellation provide ready backup in the event of a failure to an operational spacecraft and, in some specialized cases, resources for target of opportunity activities.

The TDRSS ground segment is located near Las Cruces, New Mexico, known as the White Sands Complex. Forward data is uplinked from the ground segment to the TDRS and from the TDRS to the spacecraft. Return data is downlinked from the spacecraft via the TDRS to the ground segment and then on to the designated data collection location.

The Tracking and Data Relay Satellite (TDRS) Project is providing follow-on and replacement spacecraft necessary to maintain and expand the Space Network. The contract to build three additional TDRS spacecraft, known as TDRS K, L, and M, was awarded to Boeing Space Systems in December 2007. TDRS K launched January 30, 2013, and TDRS L launched January 23, 2014. TDRS M's launch readiness date is scheduled for 2015. The contract also has options for one additional spacecraft, TDRS N. In addition to building the TDRS K, L, and M spacecraft, the contract also includes the modifications to the White Sands Complex (WSC) ground system required to support these new spacecraft.

The TDRS Project, established in 1973, is responsible for the development, launch, and on-orbit test and calibration of TDRS spacecraft. There have been four procurements of TDRS spacecraft, which include the Basic Program (TDRS F1-F6), the Replacement Program (TDRS F7), the TDRS H,I,J Program, and the TDRS K,L,M Program. TDRS Flight 7 was a replacement for Flight 2, which was lost aboard Challenger in 1986. The first seven spacecraft (TDRS F1-F7) are referred to as the First Generation, the H,I,J series are called the Second Generation, and the K,L,M series are known as the Third Generation. TDRS F1-7 spacecraft were built by TRW (now Northrop Grumman) in Redondo Beach, CA. The TDRS F8-10 (H,I,J) spacecraft were built by Hughes (now Boeing) in El Segundo, CA.

The NASA Space Network consists of the on-orbit telecommunications TDRS satellites, placed in geosynchronous orbit, and the associated TDRS ground stations, located in White Sands, New Mexico and Guam. The TDRS constellation is capable of providing nearly continuous high bandwidth (S, Ku, and Ka band) telecommunications services for expandable launch vehicles and user spacecraft in low Earth orbit. Examples include: the Hubble Space Telescope, the Earth Observig Fleet and the International Space Station. The TDRS System is a basic agency capability and a critical national resource.

Paired Frequency Bands
Paired Bands	Use	Service	Table
2025.8 - 2117.9 MHz	S-band Single Access (TDRS transmit)	Space Operation	F
2200 - 2300 MHz	S-band Single Access (TDRS receive)	Space Research (space-to-Earth)	F
2103.4 - 2109.4 MHz	S-band Multiple Access (TDRS transmit)	Space Operation	F
2285 - 2290 MHz	S-band Multiple Access (TDRS receive)	Space Operation (space-to-Earth)	F
13.4 - 14.05 GHz	TDRS downlink	Space Research	F
14.6 - 15.25 GHz	TDRS uplink	Space Research (Earth-to-space)	F
13.75 - 13.8 GHz	Ku-band Single Access (TDRS transmit)	Space Operation	F
14.891 - 15.116 GHz	Ku-band Single Access (TDRS receive)	Space Research (space-to-Earth)	F

Frequencies
Frequency	Bandwidth	Use	Service	Table
2036 MHz	-	TDRS command uplink	Space Operation	F
2211 MHz	-	TDRS telemetry downlink	Space Operation	F
13.731 GHz	-	TDRS telemetry downlink	Space Operation	F
14.785 GHz	-	TDRS command uplink	Space Operation	F
15.15 GHz	-	TDRS reference frequency signal uplink	Space Operation	F

Frequency Bands
Band	Use	Service	Table
25.25 - 27.5 GHz	Ka-band Single Access (TDRS receive)	Space Research	F

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Skybox high-resolution imaging satellites

Skybox Imaging plans to launch two non-GSO high-resolution imaging satellites, SkySat-1 and SkySat-2, in 2013. The earth stations and satellites will operate under FCC licenses E130037 and S2862. The uplink and downlink signals use both horizontal and vertical polarization.

According to its website, Skybox Imaging offers a variety of services derived from its imaging data to various industries, including online mapping, oil & gas, financial trading, real estate & construction, natural resources, mining, maritime, forestry, insurance, civil government, humanitarian, telecom & utilities, news & media, location-based services & navigation, and agriculture.

SkySat-1 will operate from an altitude of 578-600 km and orbital period 96.5 min. SkySat-2 will use 637 km and 97.5 min. Both satellites will be in an orbital inclination of about 98 deg.

Frequency Bands
Band	Use	Service	Table
2080.89 - 2081.11 MHz	Skybox Imaging telemetry uplink	Earth Exploration-satellite	N
2082.89 - 2083.11 MHz	Skybox Imaging telemetry uplink	Earth Exploration-satellite	N
8045 - 8105 MHz	Skybox Imaging data downlink	Earth Exploration-satellite	N
8170 - 8230 MHz	Skybox Imaging data downlink	Earth Exploration-satellite	N
8295 - 8355 MHz	Skybox Imaging data downlink	Earth Exploration-satellite	N
8374.744 - 8375.256 MHz	Skybox Imaging telemetry downlink	Earth Exploration-satellite	N
8379.744 - 8380.256 MHz	Skybox Imaging telemetry downlink	Earth Exploration-satellite	N

External Links:

Skybox Imaging

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High Altitude Platform Station (HAPS)

The ITU has identified various bands for use by High Altitude Platform Stations (HAPS), which are defined as "a station located on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth."

One set of bands (47.2-47.5 and 47.9-48.2 GHz) is identified on a worldwide basis. The others apply regionally or in a subset of countries.

Although there was a flurry of activity related to HAPS beginning in the late 1990's, no HAPS systems were ever developed. As of 2015, there is renewed interest in HAPS for applications involving telecommunications from Unmanned Aerial Systems (UAS).

HAPS is declared as an application of the fixed service.

Paired Frequency Bands
Paired Bands	Use	Service	Table
6440 - 6520 MHz	HAPS-to-ground in 5 countries (per 5.457)	Fixed	-
6560 - 6640 MHz	Ground-to-HAPS in 5 countries (per 5.457)	Fixed	-
27.9 - 28.2 GHz	HAPS-to-ground in 23 countries (per 5.537A)	Fixed	-
31 - 31.3 GHz	Ground-to-HAPS in 23 countries (per 5.543A)	Fixed	-

Frequency Bands
Band	Use	Service	Table
1885 - 1980 MHz	HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A)	Fixed	-
2010 - 2025 MHz	HAPS service links for IMT in Regions 1 & 3 (per 5.388A)	Fixed	-
2110 - 2160 MHz	HAPS service links for IMT in Regions 1, 2, & 3 (per 5.388A)	Fixed	-
2160 - 2170 MHz	HAPS service links for IMT in Region 2 (per 5.388A)	Fixed	-
47.2 - 47.5 GHz	HAPS (per 5.552A)	Fixed	-
47.9 - 48.2 GHz	HAPS (per 5.552A)	Fixed	-

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WRC-27 possible allocations for low-data rate NGSO MSS systems

WRC-27 agenda item 1.12:

to consider, based on the results of studies, possible allocations to the mobile-satellite service and possible regulatory actions in the frequency bands 1 427-1 432 MHz (space-to-Earth), 1 645.5-1 646.5 MHz (space-to-Earth) (Earth-to-space), 1 880-1 920 MHz (space-to-Earth) (Earth-to-space) and 2 010-2 025 MHz (space-to-Earth) (Earth-to-space) required for the future development of low-datarate non-geostationary mobile-satellite systems, in accordance with Resolution 252 (WRC-23)

Frequency Bands
Band	Use	Service	Table
1427 - 1432 MHz	WRC-27 possible allocations for low-data rate NGSO MSS systems	Mobile-satellite	-
1645.5 - 1646.5 MHz	WRC-27 possible allocations for low-data rate NGSO MSS systems	Mobile-satellite	-
1880 - 1920 MHz	WRC-27 possible allocations for low-data rate NGSO MSS systems	Mobile-satellite	-
2010 - 2025 MHz	WRC-27 possible allocations for low-data rate NGSO MSS systems	Mobile-satellite	-

External Links:

Resolution 252 (WRC-23)

WRC-27 agenda (see annex 1)

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Related Documents, Links, and Multimedia:

Occupancy Measurements (10)

Band Plan (1)

Engineering Data

	Lower Frequency	Center Frequency	Upper Frequency
Frequency	2025 MHz	2067.5 MHz	2110 MHz
Wavelength	14.8 cm	14.5 cm	14.2 cm
Band designator(s)	UHF; S-band (IEEE)	UHF; S-band (IEEE)	UHF; S-band (IEEE)
Isotropic collecting area	17.4 cm²	16.7 cm²	16.1 cm²
Free space loss (1 m)	38.6 dB	38.8 dB	38.9 dB
Free space loss (1 km)	98.6 dB	98.8 dB	98.9 dB
Free space loss (10 km)	118.6 dB	118.8 dB	118.9 dB
Free space loss (100 km)	138.6 dB	138.8 dB	138.9 dB
Free space loss (1000 km)	158.6 dB	158.8 dB	158.9 dB
Free space loss (35,786 km = GEO orbit)	189.7 dB	189.8 dB	190.0 dB
Free space loss (378,370 km = Moon)	210.1 dB	210.3 dB	210.5 dB